Integration orthogonal detector circuit used in LED

Published:2011/5/11 8:52:00 Author:Nicole | Keyword: detector, LED | From:SeekIC

In figure, photodiode array is irradiated by LED of communication system, converting the optical information into broadcast band. The circuit is similar to 1:1 balance-disbalance converter, it has single-channel input, two-channel output, the phase shift between two output is 90 degrees. This circuit does not require neutralizing, it can give high gain reasonably and has low noise.



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